Dudhrejia, K., Karena, Z. V. and Patel, R. P. (2019) “A prospective study of maternal factors and perinatal outcome of preterm birth”, International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 9(1), pp. 129–133. doi: 10.18203/2320-1770.ijrcog20195571.